dimgigov
c55d3080cf
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Documentation updates: - Fix v0.1.0 → v1.1.0 version numbers in en, ru, fa, zh docs - Add missing Window Functions, Multi-Tenant ERP, Supported Keywords sections to ru, fa, zh baraql.md (~105 lines each) - Expand Turkish and Arabic baraql.md (110 → 268 lines) - Expand Turkish and Arabic installation.md (62 → 307 lines) - Add new Bulgarian documentation files (18 new files) Client updates: - Python: Full async/await rewrite with asyncio, request queueing - Rust: Full async/await rewrite with tokio, async examples - Nim: Update README to v1.1.0 - All clients now support async patterns consistently
1.2 KiB
1.2 KiB
Колонково Съхранение (Columnar)
Колонково-ориентирано съхранение за аналитични заявки и агрегации.
Употреба
import barabadb/core/columnar
var batch = newColumnBatch()
var ageCol = batch.addInt64Col("age")
var nameCol = batch.addStringCol("name")
ageCol.appendInt64(25)
nameCol.appendString("Alice")
Агрегации
echo ageCol.sumInt64()
echo ageCol.avgInt64()
echo ageCol.minInt64()
echo ageCol.maxInt64()
echo ageCol.count()
Кодиране
RLE (Run-Length Encoding)
let rle = rleEncode(@[1'i64, 1, 1, 2, 2, 3])
Dictionary Encoding
let dict = dictEncode(@["apple", "banana", "apple"])
Типове Колони
| Тип | Описание |
|---|---|
int32 |
32-битов integer |
int64 |
64-битов integer |
float32 |
32-битов float |
float64 |
64-битов float |
string |
Низ с променлива дължина |
bool |
Булев |
Случаи на Употреба
- OLAP натоварвания
- Мащабни агрегации
- Data warehousing
- Анализ на времеви редове